{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["Chemical", "Disease"], "input": "In order to determine if PPA / caffeine can lead to stroke in normotensive and / or hypertensive rats , we administered the combination in six times the allowed human dose calculated on a per weight basis for the rats two times per day for five days ."}
{"Chemical": ["PPA", "caffeine"], "Disease": ["stroke", "hypertensive"]}